./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:37:33,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:37:34,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:37:34,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:37:34,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:37:34,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:37:34,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:37:34,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:37:34,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:37:34,098 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:37:34,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:37:34,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:37:34,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:37:34,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:37:34,100 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:37:34,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:37:34,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:37:34,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:37:34,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:37:34,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:37:34,103 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2024-11-06 18:37:34,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:37:34,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:37:34,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:37:34,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:37:34,371 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:37:34,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-11-06 18:37:35,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:37:35,852 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:37:35,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-11-06 18:37:35,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29fcf619b/0b529e755c1b40c589a6da9f32be3955/FLAG14c835edf [2024-11-06 18:37:35,881 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29fcf619b/0b529e755c1b40c589a6da9f32be3955 [2024-11-06 18:37:35,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:37:35,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:37:35,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:37:35,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:37:35,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:37:35,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:37:35" (1/1) ... [2024-11-06 18:37:35,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9a0063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:35, skipping insertion in model container [2024-11-06 18:37:35,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:37:35" (1/1) ... [2024-11-06 18:37:35,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:37:36,033 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-11-06 18:37:36,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:37:36,060 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:37:36,070 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-11-06 18:37:36,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:37:36,094 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:37:36,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36 WrapperNode [2024-11-06 18:37:36,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:37:36,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:37:36,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:37:36,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:37:36,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,123 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-11-06 18:37:36,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:37:36,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:37:36,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:37:36,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:37:36,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,153 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-06 18:37:36,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:37:36,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:37:36,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:37:36,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:37:36,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (1/1) ... [2024-11-06 18:37:36,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:37:36,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:37:36,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 18:37:36,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 18:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:37:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 18:37:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-06 18:37:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:37:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-06 18:37:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 18:37:36,308 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:37:36,310 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:37:36,443 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-06 18:37:36,443 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:37:36,457 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:37:36,457 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-06 18:37:36,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:37:36 BoogieIcfgContainer [2024-11-06 18:37:36,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:37:36,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:37:36,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:37:36,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:37:36,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:37:35" (1/3) ... [2024-11-06 18:37:36,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b738ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:37:36, skipping insertion in model container [2024-11-06 18:37:36,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:37:36" (2/3) ... [2024-11-06 18:37:36,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b738ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:37:36, skipping insertion in model container [2024-11-06 18:37:36,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:37:36" (3/3) ... [2024-11-06 18:37:36,470 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2024-11-06 18:37:36,483 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:37:36,483 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:37:36,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:37:36,549 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@764d6592, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:37:36,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:37:36,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-06 18:37:36,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-06 18:37:36,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:37:36,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:37:36,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:37:36,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:37:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash 626460765, now seen corresponding path program 1 times [2024-11-06 18:37:36,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:37:36,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885905657] [2024-11-06 18:37:36,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:36,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:37:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:37:36,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:37:36,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885905657] [2024-11-06 18:37:36,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885905657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:37:36,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:37:36,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:37:36,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454501282] [2024-11-06 18:37:36,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:37:36,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:37:36,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:37:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:37:36,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:37:36,860 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:37:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:37:37,002 INFO L93 Difference]: Finished difference Result 58 states and 89 transitions. [2024-11-06 18:37:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:37:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-06 18:37:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:37:37,009 INFO L225 Difference]: With dead ends: 58 [2024-11-06 18:37:37,009 INFO L226 Difference]: Without dead ends: 30 [2024-11-06 18:37:37,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:37:37,015 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:37:37,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 26 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:37:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-06 18:37:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2024-11-06 18:37:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-06 18:37:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-06 18:37:37,057 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2024-11-06 18:37:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:37:37,058 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-06 18:37:37,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:37:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-06 18:37:37,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-06 18:37:37,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:37:37,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:37:37,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:37:37,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:37:37,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:37:37,063 INFO L85 PathProgramCache]: Analyzing trace with hash -646764164, now seen corresponding path program 1 times [2024-11-06 18:37:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:37:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759993094] [2024-11-06 18:37:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:37,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:37:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:37,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 18:37:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:37,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 18:37:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:37,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 18:37:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:37:37,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:37:37,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759993094] [2024-11-06 18:37:37,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759993094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:37:37,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866333622] [2024-11-06 18:37:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:37:37,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:37:37,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 18:37:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:37,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 18:37:37,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:37:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:37:37,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:37:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-06 18:37:37,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866333622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:37:37,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:37:37,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2024-11-06 18:37:37,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198453314] [2024-11-06 18:37:37,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:37:37,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 18:37:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:37:37,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 18:37:37,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-06 18:37:37,597 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-06 18:37:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:37:37,776 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2024-11-06 18:37:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 18:37:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 29 [2024-11-06 18:37:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:37:37,778 INFO L225 Difference]: With dead ends: 72 [2024-11-06 18:37:37,778 INFO L226 Difference]: Without dead ends: 61 [2024-11-06 18:37:37,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-06 18:37:37,779 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 121 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 18:37:37,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 28 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 18:37:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-06 18:37:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2024-11-06 18:37:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-06 18:37:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2024-11-06 18:37:37,790 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2024-11-06 18:37:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:37:37,790 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2024-11-06 18:37:37,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-06 18:37:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2024-11-06 18:37:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-06 18:37:37,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:37:37,793 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:37:37,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 18:37:37,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:37,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:37:37,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:37:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash 727344985, now seen corresponding path program 2 times [2024-11-06 18:37:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:37:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247055760] [2024-11-06 18:37:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:37:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 18:37:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 18:37:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 18:37:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-06 18:37:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-06 18:37:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-06 18:37:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 18:37:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 18:37:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-06 18:37:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-06 18:37:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-06 18:37:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-06 18:37:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-06 18:37:38,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:37:38,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247055760] [2024-11-06 18:37:38,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247055760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:37:38,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460125851] [2024-11-06 18:37:38,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 18:37:38,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:37:38,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:37:38,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 18:37:38,542 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 18:37:38,542 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:37:38,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 18:37:38,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:37:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-06 18:37:38,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:37:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-06 18:37:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460125851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:37:39,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:37:39,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2024-11-06 18:37:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861597791] [2024-11-06 18:37:39,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:37:39,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-06 18:37:39,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:37:39,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-06 18:37:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2024-11-06 18:37:39,017 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-06 18:37:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:37:39,403 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2024-11-06 18:37:39,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-06 18:37:39,404 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 89 [2024-11-06 18:37:39,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:37:39,407 INFO L225 Difference]: With dead ends: 162 [2024-11-06 18:37:39,409 INFO L226 Difference]: Without dead ends: 145 [2024-11-06 18:37:39,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2024-11-06 18:37:39,411 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 275 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:37:39,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 69 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:37:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-06 18:37:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2024-11-06 18:37:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-06 18:37:39,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2024-11-06 18:37:39,441 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2024-11-06 18:37:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:37:39,442 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2024-11-06 18:37:39,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-06 18:37:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2024-11-06 18:37:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-06 18:37:39,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:37:39,450 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:37:39,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 18:37:39,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:39,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:37:39,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:37:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash -143599021, now seen corresponding path program 3 times [2024-11-06 18:37:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:37:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893733770] [2024-11-06 18:37:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:39,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:37:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 18:37:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 18:37:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 18:37:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-06 18:37:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-06 18:37:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-06 18:37:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 18:37:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 18:37:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-06 18:37:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-06 18:37:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-06 18:37:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-06 18:37:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 18:37:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-06 18:37:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-06 18:37:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-06 18:37:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-06 18:37:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-06 18:37:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-06 18:37:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-06 18:37:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-06 18:37:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-06 18:37:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-06 18:37:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-06 18:37:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-06 18:37:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 18:37:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-06 18:37:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-06 18:37:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-06 18:37:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-06 18:37:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2024-11-06 18:37:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:37:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893733770] [2024-11-06 18:37:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893733770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:37:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965103705] [2024-11-06 18:37:40,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-06 18:37:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:40,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:37:40,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:37:40,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 18:37:40,657 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-06 18:37:40,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 18:37:40,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-06 18:37:40,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:37:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-06 18:37:41,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 18:37:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-06 18:37:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965103705] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 18:37:41,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 18:37:41,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2024-11-06 18:37:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188740365] [2024-11-06 18:37:41,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 18:37:41,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-06 18:37:41,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:37:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-06 18:37:41,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2024-11-06 18:37:41,592 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-06 18:37:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:37:42,375 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2024-11-06 18:37:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-06 18:37:42,376 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 209 [2024-11-06 18:37:42,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:37:42,380 INFO L225 Difference]: With dead ends: 342 [2024-11-06 18:37:42,382 INFO L226 Difference]: Without dead ends: 313 [2024-11-06 18:37:42,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2024-11-06 18:37:42,384 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 588 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:37:42,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 137 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:37:42,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-06 18:37:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2024-11-06 18:37:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 124 states have internal predecessors, (127), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-06 18:37:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2024-11-06 18:37:42,426 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2024-11-06 18:37:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:37:42,427 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2024-11-06 18:37:42,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-06 18:37:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2024-11-06 18:37:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-06 18:37:42,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:37:42,437 INFO L215 NwaCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:37:42,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 18:37:42,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:42,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:37:42,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:37:42,647 INFO L85 PathProgramCache]: Analyzing trace with hash -94380729, now seen corresponding path program 4 times [2024-11-06 18:37:42,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:37:42,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894289085] [2024-11-06 18:37:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:37:42,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:37:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-06 18:37:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 18:37:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 18:37:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-06 18:37:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-06 18:37:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-06 18:37:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 18:37:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 18:37:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-06 18:37:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-06 18:37:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-06 18:37:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-06 18:37:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 18:37:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-06 18:37:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-06 18:37:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-06 18:37:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-06 18:37:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-06 18:37:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-06 18:37:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-06 18:37:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-06 18:37:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-06 18:37:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-06 18:37:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-06 18:37:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-06 18:37:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-06 18:37:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-06 18:37:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-06 18:37:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-06 18:37:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-06 18:37:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-06 18:37:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-06 18:37:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-06 18:37:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-06 18:37:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-06 18:37:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-06 18:37:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-11-06 18:37:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-06 18:37:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-06 18:37:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-06 18:37:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-06 18:37:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-11-06 18:37:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-11-06 18:37:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-06 18:37:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-06 18:37:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-06 18:37:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-06 18:37:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-11-06 18:37:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-11-06 18:37:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-06 18:37:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-11-06 18:37:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-11-06 18:37:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-06 18:37:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-11-06 18:37:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-06 18:37:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-06 18:37:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-06 18:37:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-06 18:37:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-06 18:37:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-06 18:37:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-06 18:37:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-06 18:37:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-06 18:37:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-11-06 18:37:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-11-06 18:37:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-11-06 18:37:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:37:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2024-11-06 18:37:44,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:37:44,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894289085] [2024-11-06 18:37:44,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894289085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:37:44,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310835566] [2024-11-06 18:37:44,321 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-06 18:37:44,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:37:44,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:37:44,323 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:37:44,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process